US3305524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polysiloxanes
Assignee: General Electric Co
•
Filing: 1962-11-27
•
Granted: 1967-02-21
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Expires: 1982-11-27
Abstract
No abstract record available.
Inventors
- 👤 Jr John F Brown
- 👤 Christian R Sporck
- 👤 Jr Howard A Vaughn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:28
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A BENZENE AND TOLUENE SOLUBLE DIORGANOPOLYSILOXANE HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT TEN THOUSAND AND CONSISTING ESSENTIALLY OF THE FOLLOWING RECURRING STRUCTURAL UNITS:
Claim 2
Dependent Claim
25 words
A BENZENE AND TOLUENE SOLUBLE DIORGANOPOLYSILOXANE HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT TEN THOUSAND AND CONSISTING ESSENTIALLY OF THE FOLLOWING RECURRING STRUCTURAL UNITS:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |